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NEW QUESTION 53
The color of stripe for 304L alloy material of metallic anchor is
- A. 1 solid grey
- B. 2 solid black
- C. None of the above
- D. 1 solid black
Answer: B
NEW QUESTION 54
The application of monolithic refractories by means of air placement guns is
- A. Casting
- B. Pouring
- C. Placing
- D. Gunning
Answer: D
NEW QUESTION 55
Based on-screen analysis, the size of Alumina - silicate aggregate in typical modern castable is
- A. 50 - 60%
- B. 60 - 70%
- C. None of the above
- D. 70 - 8-%
Answer: B
NEW QUESTION 56
The vessel in which cracking reaction occurs or is completed and product gases are separated from coke and/or catalyst particulate is called
- A. Cyclones of FCCU
- B. Regenerator of FCCU
- C. None of the above
- D. Reactor of FCCU
Answer: D
NEW QUESTION 57
Cristobalite is an important constituent of
- A. Silica brick
- B. Alumina bricks
- C. Insulating brick
- D. Magnesia brick
Answer: A
NEW QUESTION 58
Refractories chemically and physically stable at
- A. Low temperatures
- B. High temperatures
- C. Average temperatures
- D. None of the above
Answer: B
NEW QUESTION 59
Compositions of ground refractory materials develop a strong bond at air ambient temperatures by virtue of chemical reactions within the binder phase that is usually activated by water additions. These refractories include cement and phosphate bonded castables is called:
- A. Air setting refractories
- B. Air and heat setting refractory
- C. None of the above
- D. Heat setting refractories
Answer: A
NEW QUESTION 60
Testing frequency for material qualification of refractory for other services requires
- A. 1 sample per pallet or less from each production run
- B. None of the above
- C. 1 sample per 3 pallets or more from each production run
- D. 1 sample per 3 pallets or less from each production run
Answer: D
NEW QUESTION 61
Compositions of ground refractory materials which require relatively high temperatures for the development of an adequate bond (commonly called the ceramic bond) is called
- A. air setting refractories
- B. heat setting refractories
- C. none of the above
- D. air and heat setting refractories
Answer: B
NEW QUESTION 62
Metallic anchor made from rod or bar and usually used for dual layer linings that are configured in
- A. Y shape
- B. V shape
- C. All of the above
- D. U shape
Answer: A
NEW QUESTION 63
Refractory lined pipe used for the transport of hot particulate medium and gases between process vessels is called
- A. Standpipe of FCCU
- B. Transfer line of FCCU
- C. None of the above
- D. Fractionator of FCCU
Answer: B
NEW QUESTION 64
Heating the new refractory too rapidly will cause
- A. Explosive spalling
- B. Chemical attack
- C. None of the above
- D. Structural deterioration
Answer: A
NEW QUESTION 65
Forms (types) of refractory
- A. Shaped
- B. Unshaped
- C. Refractory (ceramic) fibers
- D. All above
Answer: D
NEW QUESTION 66
For modules of rupture test of brick and shapes, the preferred test specimen shall be standard
- A. 150 x 114 x 76mm
- B. 200 x 150 x 76mm
- C. 228 x 114 x 64 or 76mm
- D. None of the above
Answer: C
NEW QUESTION 67
API 936, the standard test method for the workability index of fire clay and high alumina plastic refractories are
- A. C 181 - 91
- B. C 133 - 97
- C. None of the above
- D. C 113 - 02
Answer: A
NEW QUESTION 68
A combination of refractory grain and suitable bonding agent that, after the addition of a proper liquid, is generally poured into place to form a refractory shape or structure which becomes rigid because of chemical action is called
- A. mortar
- B. all of the above
- C. ceramic modules
- D. castable
Answer: D
NEW QUESTION 69
Spalling of layers from the hot surface of a refractory lining is called
- A. Sheeting
- B. Erosion
- C. Crumbling
- D. Spalling
Answer: D
NEW QUESTION 70
API 936 documentation should content
- A. Execution details
- B. Design details
- C. All above
- D. Quality standards
Answer: C
NEW QUESTION 71
The welding method utilizing an arc-welding machine in conjunction with a timer and a gun is called
- A. Stud weld
- B. V-anchor
- C. Footed anchor
- D. None of the above
Answer: A
NEW QUESTION 72
Enclosure inside the top head of a reactor or regenerator vessel which supports the cyclones and in which gases exiting the cyclone outlets are collected is called
- A. Cyclone of FCCU
- B. Riser of FCCU
- C. Plenum of FCCU
- D. None of the above
Answer: C
NEW QUESTION 73
Gunning test panels are constructed with removable backs as required for
- A. visual inspection of the castable
- B. physical property test
- C. None of the above
- D. laboratory test
Answer: A
NEW QUESTION 74
Additives used to facilitate moisture removal of refractory linings during dry out are called
- A. Mineral fiber
- B. None of the above
- C. Organic fiber
- D. Metal fiber
Answer: C
NEW QUESTION 75
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